Effects of poultry manure, methylbromide and biotron on growth and yield of plastic house tomato [application of biotron: microbial enzymatic soil metabolizer].
1990
Al Dibei H.S.H.
Effects of poultry manure (0 and 70 ton/ha), methylbromide soil fumigation (0 and 89 g/mm** (2)) and "biotron" (0, 1000, 2000 and 3000 ml/ha) on yield, quality and growth of "Hymar" tomato cultivar were studied under plastic house conditions in the Jordan Valley. Manure (70 ton/ha) tended to increase marketable tomato yields throughout the harvest season. Seasonal total yields, mid total and seasonal marketable fruit numbers were significantly increased by manure application. Small and "blossom-end-rot and sunscald and rotted" fruit yields and numbers were not significantly affected. Manure significantly increased plant dry weight and its components, plant height, number of internodes and average internode length. Methylbromide soil fumigation (89 g/m** (2)) tended to increase marketable yields and fruit numbers throughout the harvest season. Yields and numbers of small and "BER and sunscald and rotted" fruits of tomato were similar for methylbromide treated plots and the control; however, the early and seasonal total fruit numbers were significantly increased. Stem and plant dry weights, plant height after 80 days and at the end of season and average internode length were significantly increased by methylbromide soil fumigation. All biotron levels (0-3000 ml/ha) had no significant effects on "marketable and total" yields and fruit numbers. Early small fruit yields and numbers were significantly reduced at the 2000 ml/ha compared with the control. Biotron had no significant effects on vegetative growth. In general, manure, methylbromide and biotron exerted no beneficial effects on the average weight per fruit.
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